Analysis on Morphological Development among the Mongolian Primary and Secondary Students in Tongliao City between 1985 and 2005

[Objective]To master the variation of the morphological development indicators of the Mongolian primary and secondary students in Tongliao city,so as to provide scientific basis for the physical health in school.[Methods]Analysis was made on the investigation data of the urban and the rural Mongolian primary and secondary students' height,weight and chest circumference between 1985 and 2005 in Tongliao city.[Results]By comparing the 5 827 surveyed students in 1985 and the 2 990 surveyed students in 2005,the height,weight and chest circumference of the urban and the rural male and female students of all age groups increased significantly.In 2005,the height of the urban 7-year-old,15-year-old and 17-year-old male students was higher than that of the rural's(P0.01);the weight of the urban 9-year-old,15-16-year-old and 18-year-old male students was higher than that of the rural's(P0.01);the height of the urban 7-8-year-old and 16-17-year-old female students was higher than that of the rural's(P0.01);the weight of the urban 8-year-old female students was higher than that of the rural's(P0.01);the chest circumference of the urban 8-year-old and 12-year-old female students was higher than that of the rural's(P0.01).[Conclusion]In 2005,the height and the weight of the urban Mongolian primary and secondary students are higher than the rural's,in Tongliao,compared with those of 1985 increased significantly.